Combined burglar-alarm and check for doors or windows.



Nd. 782,613. I i PATBNTED FEB, 14,1905.

c. P.-LOGAN. COMBINED BURGLAR ALARM AND CHECK FOR DOORS 0R WINDOWS.

APPLICATION FILED MAY 10. 1904.

- UNITED STATES Patented February 14, 1905. v

PATENT OFFICE.

CHARLES P. LOGAN, OF BRADDOCK, PENNSYLVANIA, ASSIGNOR TO SAMUEL H.CHAPMAN, OF AVALON, PENNSYLVANIA, AND WILLIAM HERZOG, CHARLES J. ABT,AND JOSEPH HERZOG, OF ALLEGHENY, PENNSYL- VANIA.

COMBINED BURGLAR-A LARMA ND C H ECK FOR DOORS OR WINDOWS.

SPECIFICATION forming part of Letters PatentNo. 782,613, dated February14, 1905.

Application filed May 10,1904. Serial No. 207,221.

To all whom it may concern: Be it known that LOHARLEs P. LoeAN,a citizen of the United States, residing at Braddock, in the county ofAllegheny and State of Penn- 5 sylvania, have invented new and usefulImprovements in a Combined Burglar-Alarm and Check for Doors or Windows,of which the following is a specification.

The object of my invention is to provide a simple, practical, anddurable device for preventing the opening of doors or windows from theouter side thereof and for sounding an alarm in the event of any oneattempting to do so. The alarm is of a detonating order, with I twochambers for containing cartridges and mechanism whereby the saidcartridges are successively exploded, so that two separate and distinctreports will be given whenever a door or window-sash shall be brought incontact 2 with the tripping mechanism of the device, My invention isclearly shown in the accompanying drawings, wherein Figure 1 is avertical longitudinal view of the device with its nearest side omittedin order to fully show the operating mechanism thereof. Fig. 2 is a viewfrom the top of the device, showing the relative positions of itsoperating parts. Fig. 3 is an end view of the device, showing thecartridge-chambers and 3 spurs for preventing the device from beingpushed away from a door. Fig. 4 is a perspective view of one of thespring-actuated hammers. Fig. 5 is a like view of a tilting framewhereby one hammer releases the other, and Fig. 6 is a perspective viewof a dog (or trigger) for holding the second hammer in a cockedposition.

Referring to the drawings, the letter A designates a rectangular casingprovided at one,

casing A. The face of each hammer is provided with afiring-pin, (shownatff,) so as to explode cartridge placed in the chambersb b of thedevice.

I The hammers D D are each provided with a downwardly-projecting lug LL, to which are connected the forward ends of a pair of spiral springs2' 2", the rear ends of which are joined to a transverse shaft K, sothat the action of the said springs shall be to normally hold thehammers against the cartridges or chambers thereof. The hammers D D areheld in their rearmost or cooked positions by means of triggers orcentrally-pivoted rocking levers Z Z, the forward upper edges of whichare notched, as at m m, to engage the upper sections of the hammers, asshown in Fig. 1.

One of the hammers, D, has its downwardlyprojecting lug L provided witha forward projection or toe n, which is intended to act against theupper surface of the forwardly-projecting arm 0 of a rocking frame O,fulcrumed in the lower part of the device. The rear arm 0' of the saidrocking frame extends under the rear portion'of the trigger or rockinglever Z and is normally prevented from pressing against same by reasonof weight X, connected therewith of forming a part thereof, as shown inFig. 1.

The letter P designates a sliding frame pronected with one of the siderails of an upper window-sash, so that a downward movement of the saidsash or upward movement of the lower sash shall cause the rod R to bedriven inward until the hammers are' successively tripped and thecartridges exploded. The inward movement of the rod Rand its slidingplate P causes the main hammer D to be re lieved from its trigger Z,while the lug and toe at the lower end of the hammer depress the forwardarm of the tilting frame 0 until its rear arm 0 trips. the trigger Z,and thus causes its hammer to fly forward and explode the cartridge infront of same' Meantime the de vice serves as a check to prevent anyfarther opening of the sashes. If used in connection with a door, thedevice is placed on the floor, so that any attempt to open the door fromthe outside will cause same to be brought in contact with the rod R,thus causing the cartridges to be ex'ploded, as in the foregoing case.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. A combined burglar-alarm and check for doors and windows, comprisinghammers, triggers for holding said hammers in cocked positions, meansthrough the instrumentality of which one hammer causes the tripping ofthe other hammer, and means for releasing the trigger of the firsthammer.

2. A combined bu rglar-alarm and check for doors and windows, comprisinghammers, triggers for holding said hammers in cocked positions, a framethrough the instrumentality of which one hammer causes the tripping ofthe other hammer, and means for releasing the trigger of the firsthammer.

3. A combined burglar-alarm and check for doors and Windows, comprisinghammers, triggers for holding said hammers in cocked positions, atilting frame through the instrumentality of which one hammer causes thetripping of the other hammer, and means for releasing the trigger of thefirst hammer.

4:. In a combined burglar-alarm and check for doors and windows, acasing having cartridge-chambers in one end thereof, pivotedspring-actuated hammers, pivoted triggers for holding said hammers incocked positions, a pivoted tilting frame through the instrumentality ofwhich one hammer causes the tripping of the other hammer, and means forreleasing the trigger of the first hammer.

In testimony whereof I have hereunto set my hand this 27th day ofFebruary, A. D. 1904.

CHARLES P. LOGAN.

Witnesses:

H. N. JENKINS, C. C. WRIGHT.

